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Senior Software Engineer, Solidity



Software Engineering
Toronto, ON, Canada · Remote
Posted on Monday, February 12, 2024
About Us
Chainlink Labs is the primary contributing developer of Chainlink, the decentralized computing platform powering the verifiable web. Chainlink is the industry-standard platform for providing access to real-world data, offchain computation, and secure cross-chain interoperability across any blockchain. Chainlink Labs helps power verifiable applications for banking, DeFi, global trade, and gaming by collaborating with some of the world’s largest financial institutions, notably Swift, DTCC, and ANZ. Chainlink Labs also works with top Web3 teams, including Aave, Compound, GMX, Maker, and Synthetix. Chainlink Labs was ranked in Newsweek’s 100 Most Loved Workplaces 2023 in both the United States and United Kingdom.
The Engineering Team
At Chainlink Labs, our engineering team pushes the scale and capabilities of decentralized applications across the industry. The Chainlink Network holds >70% market share in the oracle space, solving real-world problems by enabling smart contracts to securely interact with off-chain data/computation.
We value talented and driven craftsmen who work collaboratively to tackle complex challenges, deliver product impact, and grow as builders. Join us and shape the future of blockchain technology and decentralized finance.
As a software engineer working on Chainlink, you’ll collaborate with an experienced technical team of other senior engineers, distributed systems computing experts, and security experts, who are all committed to building world-changing decentralized infrastructure. You’ll develop and build highly scalable, secure, and reliable software that will change the way smart contracts function at a fundamental level. You’ll have the opportunity to learn and master the latest research concerning distributed systems, cryptography, blockchains, game theory, consensus algorithms, and decentralized applications. You will be given a high level of autonomy/ownership over your projects, the opportunity to expand your scope of knowledge, and the chance to help build the decentralized infrastructure of the future

Your Impact

  • Designing and implementing new features within our core services offering VRF
  • Developing Capital Markets use cases for a wide variety of end users using a combination of smart contract and Chainlink products, leading to greater adoption of blockchain technology
  • Contributing to standards for common on-chain financial contracts
  • Becoming a thought leader in possible on-chain attack vectors, failures, and disaster scenarios, modeling them in reproducible test environments, and developing fixes
  • Designing and building a new abstraction layer for companies to connect to our Cross-Chain Interoperability Protocol (CCIP) as well as other on-chain use cases
  • Modelling and developing recovery behaviours within our core node software
  • Contributing to the architectural vision for new subsystems in the core Chainlink node
  • Implementing resilient distributed systems to achieve high reliability in a variety of blockchain environmentsLearn more about the underlying technology in the blockchain ecosystem (Solana, Avalanche, Polygon, Ethereum, private networks, etc.)


  • At least 5+ years of professional software development experience (Technical Leads are encouraged to apply)
  • At least 1+ years of professional smart contract development, testing, and debugging experience (Solidity strongly preferred)
  • You have great examples of your Smart Contracts being deployed on mainnet
  • Experience in Golang or any other strongly-typed programming language Preferred
  • B.S. or higher in computer science, software engineering, or related technical field
  • Experience developing web applications/services and backend APIs
  • Knowledge of systems design conceptsExperience working with blockchain and other Web 3.0 technologies
  • Knowledge of common Web 3.0 attack vectors and ability to recognize vulnerabilities in contracts, write defensive code
  • Comfort and/or experience working as a remote employee as a part of a distributed team
  • Ability to write and communicate effectively in English to a high standard
All roles with Chainlink Labs are global and remote-based. Unless otherwise stated, we ask that you try to overlap some working hours with Eastern Standard Time (EST).
Commitment to Equal Opportunity
Chainlink Labs is an equal opportunity employer. All qualified applicants will receive equal consideration for employment in compliance with applicable laws, regulations, or ordinances. If you need assistance or accommodation due to a disability or special need when applying for a role or in our recruitment process, please contact us via this form.
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